Cycloramphus dubius is a species of frog in the family Cycloramphidae. It is endemic to the state of São Paulo, Brazil. Common name São Paulo button frog has been coined for it.
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
Jumping (saltation) can be distinguished from running, galloping, and other gaits where the entire body is temporarily airborne by the relatively l...
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starts withMales can grow to 54 mm (2.1 in) and females to 60 mm (2.4 in) in snout–vent length; the mean adult size for males and females is 46–48 mm (1.8–1.9 in) and 52 mm (2.0 in), respectively. The body is dorso-ventrally flattened. The snout is rounded or has a flared lip. The toes are moderately webbed. Dorsal skin is granular-rugose and overlain with shagreen. Dorsal coloration is uniform or rarely blotched but without distinctive colors.
Reproduction takes place near small waterfalls and continues throughout the year. Males call at night from rock crevices near the waterfalls. Average clutch size is 60 eggs (range 30–80 eggs). The eggs are deposited as a single layer outside water, but where they receive constant moisture from water droplets or spray. Males guard egg clutches and can defend them aggressively.
The eggs are 3 mm (0.1 in) in diameter. They hatch as Gosner stage 25 tadpoles measuring about 60 mm (2.4 in) in length. The tadpoles stay outside water, feeding above wet rocks.
